This text offers an excellent introduction to the mathematical theory of wavelets for senior undergraduate students. Despite the fact that this theory is intrinsically advanced, the author's elementary approach makes it accessible at the undergraduate level. Beginning with thorough accounts of inner product spaces and Hilbert spaces, the book then shifts its focus to wavelets specifically, starting with the Haar wavelet, broadening to wavelets in general, and culminating in the constructio...

It’s San Francisco, 1928, and Sam Spade is a wisecracking, womanising Private Investigator. Missing husbands and unfaithful wives are his usual stock-in-trade, but when the beautifully distressed Miss Wonderley calls he gets involved in a dangerous caper most people would run a mile from. Miss Wonderley asks Sam’s partner, Miles Archer, to shadow Floyd Thursby, whom she maintains has kidnapped her sister. But then Archer is shot dead, and Miss Wonderley’s story turns out to be a lie – just...